15798426097 has 4 divisors (see below), whose sum is σ = 15800699376. Its totient is φ = 15796152820.

The previous prime is 15798426067. The next prime is 15798426113. The reversal of 15798426097 is 79062489751.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 15798426097 - 2¹¹ = 15798424049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15798426067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1126183 + ... + 1140124.

It is an arithmetic number, because the mean of its divisors is an integer number (3950174844).

Almost surely, 2^15798426097 is an apocalyptic number.

It is an amenable number.

15798426097 is a deficient number, since it is larger than the sum of its proper divisors (2273279).

15798426097 is an equidigital number, since it uses as much as digits as its factorization.

15798426097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2273278.

The product of its (nonzero) digits is 7620480, while the sum is 58.

The spelling of 15798426097 in words is "fifteen billion, seven hundred ninety-eight million, four hundred twenty-six thousand, ninety-seven".